Home / 21,000,442.15-31,500,663.23-15,260,879.35

Finding the Fourth Proportional to 21,000,442.15, 31,500,663.23 and 15,260,879.35

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Solution

The fourth proportional to 21,000,442.15, 31,500,663.23 and 15,260,879.35 is: 22,891,319.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,000,442.15 : 31,500,663.23 = 15,260,879.35 : x
  2. Step 2: Convert to fraction form
    21,000,442.15/31,500,663.23 = 15,260,879.35/x
  3. Step 3: Cross multiply
    21,000,442.15x = 31,500,663.23 × 15,260,879.35
  4. Step 4: Simplify right side
    21,000,442.15x = 480,727,820,998,011.31
  5. Step 5: Solve for x
    x = 480,727,820,998,011.31/21,000,442.15
  6. Step 6: Final answer
    x = 22,891,319.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.